<template>
  <section>
    <header id="top_tips">
      <span class="item_tip" v-if="fatherComponent=='home'">{{level}}</span>
      <span class="item_tip" v-if="fatherComponent=='item'">题目{{itemNum}}</span>
    </header>
    <div class="" v-if="fatherComponent=='home'">
      <div class="home_logo item_container_style"></div>
      <router-link to="item" class="start button_style"></router-link>
    </div>
    <div class="item_container" v-if="fatherComponent=='item'">
      <div class="item_back item_container_style">
        <div class="item_list_container" v-if="itemDetail.length>0">
          <header class="item_title">{{itemDetail[itemNum-1].topic_name}}</header>
          <ul>
            <li class="item_list" v-for="(item,index) in itemDetail[itemNum-1].topic_answer" @click="choosed(index, item.topic_answer_id)" :key="index">
              <span class="option_style" :class="{'has_choosed':choosedNum==index}">{{chooseType(index)}}</span>
              <span class="option_detail">{{item.answer_name}}</span>
            </li>
          </ul>
        </div>
      </div>
      <span class="next_item button_style" @click="nextItem" v-if="itemNum < itemDetail.length"></span>
      <span class="submit_item button_style" v-else @click="submitAnswer"></span>
    </div>
  </section>
</template>

<script>
  import Vue from 'vue';
  import { mapState, mapActions } from 'vuex'
  export default {
    name: "itemcontainer",
    data() {
      return {
        itemId: null, //题目ID
        choosedNum: null, //选中答案索引
        choosedId: null, //选中答案id
      }
    },
    props: ['fatherComponent'],
    computed: mapState([
      'itemNum', //第几题
      'level', //第几周
      'itemDetail', //题目详情
      'answerid', //答案id
      // 'timer', //计时器
    ]),
    created(){
      // this.$store.state.itemNum = 1;
      // this.$store.state.answerid = [];
      this.initializeData();
      document.body.style.backgroundImage = 'url(./static/img/1-1.jpg)';
    },
    methods: {
      ...mapActions(['addNum','initializeData']),
      chooseType: type => {
        switch (type) {
          case 0:
            return 'A';
          case 1:
            return 'B';
          case 2:
            return 'C';
          case 3:
            return 'D';
        }
      },
      //选中的答案信息
      choosed(type, id) {
        this.choosedNum = type;
        this.choosedId = id;
      },
      //点击下一题
      nextItem() {
        if (this.choosedNum != null) {
          this.choosedNum = null;
          //保存答案，题目索引加1
          this.addNum(this.choosedId)
          // this.$store.state.itemNum += 1;
          // this.$store.state.answerid.push(this.choosedId)
        } else {
        this.$notify({mes: '您还没有选择答案哦', timeout: 2000})
        // this.$alert({mes:'您还没有选择答案哦'})
        }
      },
      //点击保存
      submitAnswer() {
        if (this.choosedNum != null) {
          this.choosedNum = null;
          this.addNum(this.choosedId)
          // this.$store.state.answerid.push(this.choosedId)
          this.$router.push('score')
        } else {
          // alert('您还没有选择答案哦')
          this.$notify({mes: '您还没有选择答案哦', timeout: 2000})
        }
      }
    }
  }
</script>

<style lang="less">
  #top_tips {
    position: absolute;
    height: 7.35rem;
    width: 3.25rem;
    top: -1.3rem;
    right: 1.6rem;
    background: url(../images/WechatIMG2.png) no-repeat;
    background-size: 100% 100%;
    z-index: 10;
    .item_tip {
      position: absolute;
      left: 0.48rem;
      bottom: 1.1rem;
      height: 0.7rem;
      width: 2.5rem;
      font-size: 0.6rem;
      font-family: '黑体';
      font-weight: 600;
      color: #a57c50;
      text-align: center;
    }
  }
  .item_container_style {
    height: 11.625rem;
    width: 13.15rem;
    background-repeat: no-repeat;
    position: absolute;
    top: 4.1rem;
    left: 1rem;
  }
  .home_logo {
    background-image: url(../images/1-2.png);
    background-size: 13.142rem 100%;
    background-position: right center;
  }
  .item_back {
    background-image: url(../images/2-1.png);
    background-size: 100% 100%;
  }
  .button_style {
    display: block;
    height: 2.1rem;
    width: 4.35rem;
    background-size: 100% 100%;
    position: absolute;
    top: 16.5rem;
    left: 50%;
    margin-left: -2.4rem;
    background-repeat: no-repeat;
  }
  .start {
    background-image: url(../images/1-4.png);
  }
  .next_item {
    background-image: url(../images/2-2.png);
  }
  .submit_item {
    background-image: url(../images/3-1.png);
  }
  .item_list_container {
    position: absolute;
    height: 7.0rem;
    width: 8.0rem;
    top: 2.4rem;
    left: 3rem;
    -webkit-font-smoothing: antialiased;
  }
  .item_title {
    font-size: 0.65rem;
    color: #fff;
    line-height: 0.7rem;
  }
  .item_list {
    font-size: 0;
    margin-top: 0.4rem;
    width: 10rem;
    span {
      display: inline-block;
      font-size: 0.6rem;
      color: #fff;
      vertical-align: middle;
    }
    .option_style {
      height: 0.725rem;
      width: 0.725rem;
      border: 1px solid #fff;
      border-radius: 50%;
      line-height: 0.725rem;
      text-align: center;
      margin-right: 0.3rem;
      font-size: 0.5rem;
      font-family: 'Arial';
    }
    .has_choosed {
      background-color: #ffd400;
      color: #575757;
      border-color: #ffd400;
    }
    .option_detail {
      width: 7.5rem;
      padding-top: 0.11rem;
    }
  }
</style>



